Iambic pentameter (from Greek: ἰαμβικός πεντάμετρος, iambikos pentametros, meaning a measure with five iambs) is a commonly used type of metrical line in traditional verse and verse drama. The term describes the rhythm that the words establish in that line, which is measured in small groups of syllables called "feet". The word "iambic" describes the type of foot that is used (in English, an unstressed syllable followed by a stressed syllable). The word "pentameter" indicates that a line has five of these "feet".These terms originally applied to the quantitative meter of classical poetry. They were adopted to describe the equivalent meters in English accentual-syllabic verse.